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Questions in Grade College

[Free] A rectangle's width is 2 meters shorter than its length, [tex]$I$[/tex]. Its area is 168 square meters. Which equation can be used to find the length of the rectangle? [tex]$I(I-2)=168$[/tex] [tex]$I(I+2)=168$[/tex] [tex]$2 l^2=168$[/tex] [tex]$\frac{1}{2} l^2=168$[/tex]

[Free] Which property of a substance can be determined using a pH indicator? A. acidity B. boiling point C. density D. electrical conductivity E. thermal conductivity

[Free] Which of the following are the factors of $m^2-14 m+48$? A) $(m-12)(m+4)$ B) $(m-12)(m-4)$ C) $(m-6)(m-8)$ D) $(m+6)(m+8)$

[Free] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Free] What is the volume of a cube with sides that each measure 5 cm?

[Free] What is the closest approximate solution to the system of equations? $(-5,-7.2)$ $(-5,-6.8)$ $(-5,-6.2)$ $(-5,-5.9)$

[Free] All feminist ethics are examples of moral sentimentalism. (A) True (B) False

[Free] Select all the correct answers. Which equations represent precipitation reactions? [tex]$Na _2 S+ FeBr _2 \rightarrow 2 NaBr + FeS$[/tex] [tex]$MgSO _4+ CaCl _2 \rightarrow MgCl _2+ CaSO _4$[/tex] [tex]$LiOH + NH _4 I \rightarrow Lil + NH _4 OH$[/tex] [tex]$2 NaCl + K _2 S \rightarrow Na _2 S+2 KCl$[/tex] [tex]$AgNO _3+ NaCl \rightarrow AgCl + NaNO _3$[/tex]

[Free] When developing an experimental design, which action would improve the quality of the results? A. Ensure that it answers a question about cause and effect. B. Keep the sample size of test subjects to a minimum. C. Have a different researcher make the measurements. D. Include as many responding variables as possible.

[Free] Calculate the inflation rate from year XXX1 to year XXX2 using the Consumer Price Index. | | XXX1 | XXX2 | | :-------------------- | :--- | :--- | | Housing | 1450 | 1560 | | Food | 400 | 440 | | Transportation | 450 | 510 | | Medical | 520 | 560 | | Education | 470 | 530 | | Apparel | 320 | 360 | | Recreation | 200 | 210 | | Other | 270 | 290 |